[14547] | 1 | /* Define _XOPEN_SOURCE to get tempnam prototype with glibc et al -- |
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| 2 | more general than _INCLUDE_XOPEN_SOURCE used elsewhere `for HP-UX'. */ |
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| 3 | #define _XOPEN_SOURCE 1 |
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[16959] | 4 | #include "config.h" |
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[14547] | 5 | #include "f2c.h" |
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| 6 | #include "fio.h" |
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| 7 | #include <string.h> |
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| 8 | #ifndef NON_POSIX_STDIO |
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| 9 | #ifdef MSDOS |
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| 10 | #include "io.h" |
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| 11 | #else |
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| 12 | #include "unistd.h" /* for access */ |
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| 13 | #endif |
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| 14 | #endif |
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| 15 | |
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| 16 | #ifdef KR_headers |
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| 17 | extern char *malloc(); |
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| 18 | #ifdef NON_ANSI_STDIO |
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| 19 | extern char *mktemp(); |
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| 20 | #endif |
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| 21 | extern integer f_clos(); |
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| 22 | #else |
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| 23 | #undef abs |
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| 24 | #undef min |
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| 25 | #undef max |
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| 26 | #include <stdlib.h> |
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| 27 | extern int f__canseek(FILE*); |
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| 28 | extern integer f_clos(cllist*); |
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| 29 | #endif |
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| 30 | |
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| 31 | #ifdef NON_ANSI_RW_MODES |
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| 32 | char *f__r_mode[2] = {"r", "r"}; |
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| 33 | char *f__w_mode[4] = {"w", "w", "r+w", "r+w"}; |
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| 34 | #else |
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| 35 | char *f__r_mode[2] = {"rb", "r"}; |
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| 36 | char *f__w_mode[4] = {"wb", "w", "r+b", "r+"}; |
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| 37 | #endif |
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| 38 | |
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| 39 | static char f__buf0[400], *f__buf = f__buf0; |
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| 40 | int f__buflen = (int)sizeof(f__buf0); |
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| 41 | |
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| 42 | static void |
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| 43 | #ifdef KR_headers |
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| 44 | f__bufadj(n, c) int n, c; |
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| 45 | #else |
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| 46 | f__bufadj(int n, int c) |
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| 47 | #endif |
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| 48 | { |
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| 49 | unsigned int len; |
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| 50 | char *nbuf, *s, *t, *te; |
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| 51 | |
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| 52 | if (f__buf == f__buf0) |
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| 53 | f__buflen = 1024; |
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| 54 | while(f__buflen <= n) |
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| 55 | f__buflen <<= 1; |
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| 56 | len = (unsigned int)f__buflen; |
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| 57 | if (len != f__buflen || !(nbuf = (char*)malloc(len))) |
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| 58 | f__fatal(113, "malloc failure"); |
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| 59 | s = nbuf; |
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| 60 | t = f__buf; |
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| 61 | te = t + c; |
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| 62 | while(t < te) |
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| 63 | *s++ = *t++; |
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| 64 | if (f__buf != f__buf0) |
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| 65 | free(f__buf); |
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| 66 | f__buf = nbuf; |
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| 67 | } |
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| 68 | |
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| 69 | int |
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| 70 | #ifdef KR_headers |
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| 71 | f__putbuf(c) int c; |
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| 72 | #else |
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| 73 | f__putbuf(int c) |
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| 74 | #endif |
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| 75 | { |
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| 76 | char *s, *se; |
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| 77 | int n; |
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| 78 | |
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| 79 | if (f__hiwater > f__recpos) |
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| 80 | f__recpos = f__hiwater; |
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| 81 | n = f__recpos + 1; |
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| 82 | if (n >= f__buflen) |
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| 83 | f__bufadj(n, f__recpos); |
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| 84 | s = f__buf; |
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| 85 | se = s + f__recpos; |
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| 86 | if (c) |
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| 87 | *se++ = c; |
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| 88 | *se = 0; |
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| 89 | for(;;) { |
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| 90 | fputs(s, f__cf); |
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| 91 | s += strlen(s); |
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| 92 | if (s >= se) |
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| 93 | break; /* normally happens the first time */ |
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| 94 | putc(*s++, f__cf); |
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| 95 | } |
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| 96 | return 0; |
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| 97 | } |
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| 98 | |
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| 99 | void |
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| 100 | #ifdef KR_headers |
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| 101 | x_putc(c) |
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| 102 | #else |
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| 103 | x_putc(int c) |
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| 104 | #endif |
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| 105 | { |
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| 106 | if (f__recpos >= f__buflen) |
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| 107 | f__bufadj(f__recpos, f__buflen); |
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| 108 | f__buf[f__recpos++] = c; |
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| 109 | } |
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| 110 | |
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| 111 | #define opnerr(f,m,s) \ |
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| 112 | do {if(f) {f__init &= ~2; errno= m;} else opn_err(m,s,a); return(m);} while(0) |
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| 113 | |
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| 114 | static void |
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| 115 | #ifdef KR_headers |
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| 116 | opn_err(m, s, a) int m; char *s; olist *a; |
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| 117 | #else |
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| 118 | opn_err(int m, char *s, olist *a) |
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| 119 | #endif |
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| 120 | { |
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| 121 | if (a->ofnm) { |
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| 122 | /* supply file name to error message */ |
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| 123 | if (a->ofnmlen >= f__buflen) |
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| 124 | f__bufadj((int)a->ofnmlen, 0); |
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| 125 | g_char(a->ofnm, a->ofnmlen, f__curunit->ufnm = f__buf); |
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| 126 | } |
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| 127 | f__fatal(m, s); |
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| 128 | } |
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| 129 | |
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| 130 | #ifdef KR_headers |
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| 131 | integer f_open(a) olist *a; |
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| 132 | #else |
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| 133 | integer f_open(olist *a) |
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| 134 | #endif |
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| 135 | { unit *b; |
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| 136 | integer rv; |
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[16959] | 137 | char buf[256], *s, *env; |
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[14547] | 138 | cllist x; |
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| 139 | int ufmt; |
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| 140 | FILE *tf; |
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[16959] | 141 | int fd, len; |
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[14547] | 142 | #ifndef NON_UNIX_STDIO |
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| 143 | int n; |
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| 144 | #endif |
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| 145 | if(f__init != 1) f_init(); |
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| 146 | f__external = 1; |
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| 147 | if(a->ounit>=MXUNIT || a->ounit<0) |
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| 148 | err(a->oerr,101,"open"); |
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| 149 | f__curunit = b = &f__units[a->ounit]; |
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| 150 | if(b->ufd) { |
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| 151 | if(a->ofnm==0) |
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| 152 | { |
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| 153 | same: if (a->oblnk) |
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| 154 | b->ublnk = *a->oblnk == 'z' || *a->oblnk == 'Z'; |
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| 155 | return(0); |
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| 156 | } |
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| 157 | #ifdef NON_UNIX_STDIO |
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| 158 | if (b->ufnm |
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| 159 | && strlen(b->ufnm) == a->ofnmlen |
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| 160 | && !strncmp(b->ufnm, a->ofnm, (unsigned)a->ofnmlen)) |
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| 161 | goto same; |
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| 162 | #else |
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| 163 | g_char(a->ofnm,a->ofnmlen,buf); |
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| 164 | if (f__inode(buf,&n) == b->uinode && n == b->udev) |
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| 165 | goto same; |
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| 166 | #endif |
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| 167 | x.cunit=a->ounit; |
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| 168 | x.csta=0; |
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| 169 | x.cerr=a->oerr; |
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| 170 | if ((rv = f_clos(&x)) != 0) |
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| 171 | return rv; |
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| 172 | } |
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| 173 | b->url = (int)a->orl; |
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| 174 | b->ublnk = a->oblnk && (*a->oblnk == 'z' || *a->oblnk == 'Z'); |
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| 175 | if(a->ofm==0) |
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| 176 | { if(b->url>0) b->ufmt=0; |
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| 177 | else b->ufmt=1; |
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| 178 | } |
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| 179 | else if(*a->ofm=='f' || *a->ofm == 'F') b->ufmt=1; |
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| 180 | else b->ufmt=0; |
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| 181 | ufmt = b->ufmt; |
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| 182 | #ifdef url_Adjust |
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| 183 | if (b->url && !ufmt) |
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| 184 | url_Adjust(b->url); |
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| 185 | #endif |
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| 186 | if (a->ofnm) { |
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| 187 | g_char(a->ofnm,a->ofnmlen,buf); |
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| 188 | if (!buf[0]) |
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| 189 | opnerr(a->oerr,107,"open"); |
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| 190 | } |
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| 191 | else |
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| 192 | sprintf(buf, "fort.%ld", (long)a->ounit); |
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| 193 | b->uscrtch = 0; |
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| 194 | b->uend=0; |
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| 195 | b->uwrt = 0; |
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| 196 | b->ufd = 0; |
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| 197 | b->urw = 3; |
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| 198 | switch(a->osta ? *a->osta : 'u') |
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| 199 | { |
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| 200 | case 'o': |
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| 201 | case 'O': |
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| 202 | #ifdef NON_POSIX_STDIO |
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| 203 | if (!(tf = fopen(buf,"r"))) |
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| 204 | opnerr(a->oerr,errno,"open"); |
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| 205 | fclose(tf); |
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| 206 | #else |
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| 207 | if (access(buf,0)) |
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| 208 | opnerr(a->oerr,errno,"open"); |
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| 209 | #endif |
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| 210 | break; |
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| 211 | case 's': |
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| 212 | case 'S': |
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| 213 | b->uscrtch=1; |
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[16959] | 214 | #ifdef HAVE_MKSTEMP /* Allow use of TMPDIR preferentially. */ |
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| 215 | env = getenv("TMPDIR"); |
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| 216 | if (!env) env = getenv("TEMP"); |
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| 217 | if (!env) env = "/tmp"; |
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| 218 | len = strlen(env); |
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| 219 | if (len > 256 - sizeof "/tmp.FXXXXXX") |
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| 220 | err (a->oerr, 132, "open"); |
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| 221 | strcpy(buf, env); |
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| 222 | strcat(buf, "/tmp.FXXXXXX"); |
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| 223 | fd = mkstemp(buf); |
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| 224 | if (fd == -1 || close(fd)) |
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| 225 | err (a->oerr, 132, "open"); |
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| 226 | #else /* ! defined (HAVE_MKSTEMP) */ |
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[14547] | 227 | #ifdef HAVE_TEMPNAM /* Allow use of TMPDIR preferentially. */ |
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| 228 | s = tempnam (0, buf); |
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| 229 | if (strlen (s) >= sizeof (buf)) |
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| 230 | err (a->oerr, 132, "open"); |
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| 231 | (void) strcpy (buf, s); |
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| 232 | free (s); |
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| 233 | #else /* ! defined (HAVE_TEMPNAM) */ |
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[18473] | 234 | #ifdef HAVE_TMPNAM |
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[14547] | 235 | tmpnam(buf); |
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| 236 | #else |
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| 237 | (void) strcpy(buf,"tmp.FXXXXXX"); |
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| 238 | (void) mktemp(buf); |
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| 239 | #endif |
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| 240 | #endif /* ! defined (HAVE_TEMPNAM) */ |
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[16959] | 241 | #endif /* ! defined (HAVE_MKSTEMP) */ |
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[14547] | 242 | goto replace; |
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| 243 | case 'n': |
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| 244 | case 'N': |
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| 245 | #ifdef NON_POSIX_STDIO |
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| 246 | if ((tf = fopen(buf,"r")) || (tf = fopen(buf,"a"))) { |
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| 247 | fclose(tf); |
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| 248 | opnerr(a->oerr,128,"open"); |
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| 249 | } |
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| 250 | #else |
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| 251 | if (!access(buf,0)) |
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| 252 | opnerr(a->oerr,128,"open"); |
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| 253 | #endif |
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| 254 | /* no break */ |
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| 255 | case 'r': /* Fortran 90 replace option */ |
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| 256 | case 'R': |
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| 257 | replace: |
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| 258 | if (tf = fopen(buf,f__w_mode[0])) |
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| 259 | fclose(tf); |
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| 260 | } |
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| 261 | |
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| 262 | b->ufnm=(char *) malloc((unsigned int)(strlen(buf)+1)); |
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| 263 | if(b->ufnm==NULL) opnerr(a->oerr,113,"no space"); |
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| 264 | (void) strcpy(b->ufnm,buf); |
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| 265 | if ((s = a->oacc) && b->url) |
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| 266 | ufmt = 0; |
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| 267 | if(!(tf = fopen(buf, f__w_mode[ufmt|2]))) { |
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| 268 | if (tf = fopen(buf, f__r_mode[ufmt])) |
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| 269 | b->urw = 1; |
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| 270 | else if (tf = fopen(buf, f__w_mode[ufmt])) { |
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| 271 | b->uwrt = 1; |
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| 272 | b->urw = 2; |
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| 273 | } |
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| 274 | else |
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| 275 | err(a->oerr, errno, "open"); |
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| 276 | } |
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| 277 | b->useek = f__canseek(b->ufd = tf); |
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| 278 | #ifndef NON_UNIX_STDIO |
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| 279 | if((b->uinode = f__inode(buf,&b->udev)) == -1) |
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| 280 | opnerr(a->oerr,108,"open"); |
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| 281 | #endif |
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| 282 | if(b->useek) |
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| 283 | if (a->orl) |
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[18473] | 284 | FSEEK(b->ufd, 0, SEEK_SET); |
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[14547] | 285 | else if ((s = a->oacc) && (*s == 'a' || *s == 'A') |
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[18473] | 286 | && FSEEK(b->ufd, 0, SEEK_END)) |
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[14547] | 287 | opnerr(a->oerr,129,"open"); |
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| 288 | return(0); |
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| 289 | } |
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| 290 | #ifdef KR_headers |
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| 291 | fk_open(seq,fmt,n) ftnint n; |
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| 292 | #else |
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| 293 | fk_open(int seq, int fmt, ftnint n) |
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| 294 | #endif |
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| 295 | { char nbuf[10]; |
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| 296 | olist a; |
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| 297 | int rtn; |
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| 298 | int save_init; |
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| 299 | |
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| 300 | (void) sprintf(nbuf,"fort.%ld",(long)n); |
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| 301 | a.oerr=1; |
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| 302 | a.ounit=n; |
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| 303 | a.ofnm=nbuf; |
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| 304 | a.ofnmlen=strlen(nbuf); |
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| 305 | a.osta=NULL; |
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| 306 | a.oacc= seq==SEQ?"s":"d"; |
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| 307 | a.ofm = fmt==FMT?"f":"u"; |
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| 308 | a.orl = seq==DIR?1:0; |
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| 309 | a.oblnk=NULL; |
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| 310 | save_init = f__init; |
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| 311 | f__init &= ~2; |
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| 312 | rtn = f_open(&a); |
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| 313 | f__init = save_init | 1; |
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| 314 | return rtn; |
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| 315 | } |
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